Over the last decade, a number of leading football managers have emerged who have a passion for the game and have earned fame and laurels in their professional careers. Among them are Pep Guardiola, Alex Ferguson, Germany’s World Cup winner Joachim Loew and Carlo Ancelotti. But without Jose Mourinho this list would be incomplete.

Winning the league titles in four different countries’ clubs - Porto (Portugal), Chelsea (England), Inter Milan (Italy) and Real Madrid (Spain) - are the milestones of his professional career. He didn’t play football as a star player; even he did not play football for his country Portugal. But as far as his managerial skills and understanding of the game are concerned, Jose Mourinho is no less than any great footballer manager.

But at the same time, he is a quite different person than the others. His arrogance makes him one of the most controversial personalities. He is never subdued by any player’s stature, fame and personality, and if he dislikes someone, he doesn’t hesitate in openly criticising him, even if it is the likes of superstar Cristiano Ronaldo.

His football journey started way back in 1996 when he was an assistant coach to Dutchman Louis Van Gaal at Barcelona. It is stated that that was where he perfected the art of managing football. He came into the limelight when he became the manager of his motherland (Portugal) club Porto. There he won many hearts when he won the prestigious UEFA Champions League, UEFA Europa League, Taca de Portugal and Premier Liga.

He took Chelsea to new heights when he won two Premier League titles and an FA Cup, making Chelsea a force to be reckoned with.

He has lifted the UEFA Champions League trophy twice: one with Porto and one with Inter Milan; and three Premier League trophies with Chelsea, twice winning Seire A with Inter Milan, Premier Liga with Porto and once La Liga with Madrid.

Jose Mourinho is nicknamed Mr Arrogant despite his long and successful managerial career. He will always be remembered as the most contentious football manager because of his unusual tactics during tough matches.

His entire managerial career, he has fielded a 4- 4 -2 formation. Pep Guardiola, with whom he has a bitter rivalry, says that he is one of the best managers in the world.

He shook up the whole systems of the clubs he managed. He called the legendary Arsene Wenger a "specialist in failure" and has engaged with him in verbal battles many times.

He gave no special treatment to Brazilian Kaka and Spanish legend Iker Casillas and kept them on the bench for most of his tenure at Real Madrid, drawing the ire of the fans.

He also said that Ronaldo thinks he knows everything and that the coach cannot improve him.

Mourinho thinks that when his team wins, it is his tactics only that bring out the best in his players, and he can be victorious without winning the trust of his key players.

Leaving press conferences, arguing with journalists and hurling verbal abuse at his opponents, referees, his own players and staff have been his trademarks.

He has faced suspensions and was even taken to the court by Chelsea’s former doctor Eva Carniero for humiliating her in public.

Chelsea, after winning the Premier League title in 2014-15, took a massive slump the very next season and the same team which had outclassed every major team a year before was in tatters. It is because the players had lost faith in their manager and their relationship reached an all-time low.

Even at his current club Manchester United, he has sidelined the German great Bastian Schweisteiger. For many months he forced him to train with the junior team, giving out a message that he had no place at the club.

He also traded barbs with Chelsea manager Anotonio Conte after the final whistle of their match when Chelsea thumped Manchester United this season.

Despite all this negative publicity, he has orchestrated the rise of different teams.

Mourinho maybe needs to realise that big clubs have their own history and culture which need to be embraced, and there is no harm in changing oneself.